Difference between revisions of "Humdrum lab 5"

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(Duration)
(Chord labels)
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[[File:wf-puff.png|center|500px]]
 
[[File:wf-puff.png|center|500px]]
  
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== Meter ==
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What sort of meters are in the database and how much of each type?
 +
 +
    beat -Ca *.krn | beat -Ua  | extractx -s '$1-$'  | ridx -H | sortcount -p
 +
    65.89 4 4
 +
    15.44 3 4
 +
    11.67 2 2
 +
    3.24 2 4
 +
    2.78 6 8
 +
    0.52 12 8
 +
    0.16 5 4
 +
    0.14 9 8
 +
    0.09 6 4
 +
    0.06 3 8
 +
    0.01 3 2
 +
    0.01 7 4
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    0 2 8
 +
    0 7 8
 +
    0 9 4
 +
    0 10 8
 +
    0 17 16
 +
    0 1 2
 +
    0 5 8
 +
    0 1 4
 +
    0 4 8
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 +
-C means extract the count of the meter (the top number).
 +
 +
-U means extract the duration unit from the meter (the bottom number).
 +
 +
-a means to append the analysis to the end of the lines (keeping the original input score).
  
  

Revision as of 17:34, 1 May 2018

This lab is about the wikifonia data.

1 Basic information

How many files

   ls *.krn | wc -l
   6710

How many have lyrics:

    grep -l "\*\*text" *.krn | wc -l
    5460

How many have chords:

    grep -l "\*\*text" *.krn | wc -l
    6282

How many have two or more verses:

    grep -l "\*\*text.*\*\*text" *.krn | wc -l
    2006

2 Duration

What is the duration of all songs if played back-to-back and at the specified tempo without repeats?

   gettime -T *.krn | tail -n 1
   286:50:23.1354 hours

What are the longest songs:

    gettime --simple -T *.krn | sort -k2 -nr | head -n 10
    WF6618.krn:	3120
    WF0181.krn:	3120
    WF0182.krn:	1864
    WF3616.krn:	1420
    WF6336.krn:	1134
    WF5131.krn:	909
    WF6068.krn:	785
    WF5004.krn:	696
    WF3226.krn:	671
    WF1249.krn:	664

The -k2 option means to sort by the second column of data. -n means to sort numerically rather than alphabetically, and -r means to sort by highest first.

What are the shortest songs:

    gettime --simple -T *.krn | sort -k2 -nr | tail -n 10
    WF2814.krn:	16
    WF2806.krn:	16
    WF2795.krn:	16
    WF2785.krn:	16
    WF2856.krn:	14
    WF2852.krn:	12
    WF2799.krn:	12
    WF6338.krn:	8
    WF5609.krn:	8
 The shortest song in VHV:
    cat WF5609.krn | pbcopy
Wf-puff.png


3 Meter

What sort of meters are in the database and how much of each type?

    beat -Ca *.krn | beat -Ua  | extractx -s '$1-$'  | ridx -H | sortcount -p
    65.89	4	4
    15.44	3	4
    11.67	2	2
    3.24	2	4
    2.78	6	8
    0.52	12	8
    0.16	5	4
    0.14	9	8
    0.09	6	4
    0.06	3	8
    0.01	3	2
    0.01	7	4
    0	2	8
    0	7	8
    0	9	4
    0	10	8
    0	17	16
    0	1	2
    0	5	8
    0	1	4
    0	4	8

-C means extract the count of the meter (the top number).

-U means extract the duration unit from the meter (the bottom number).

-a means to append the analysis to the end of the lines (keeping the original input score).


4 Chord labels

How many unique chord labels are there?

   extractx -i mxhm  * | ridx -H | sortcount | wc -l
   1399

What are the most common ones:

   extractx -i mxhm  * | ridx -H | sortcount -p | head -n 10
   7.21	C major
   6.14	F major
   4.94	G major
   4.83	G dominant
   4.07	C dominant
   3.55	D dominant
   3.28	B- major
   2.81	E- major
   2.3	D major
   2.25	F dominant